baber/WOPTO huggingface dataset:
Patent GB-915563-A (GB)
Title: Devices for supporting and spacing electrical conductors
IPC: H02G7/12
Filed: 1960-02-12
Abstract: 915,563. Supporting and spacing conductors. PLM PRODUCTS Inc. Feb. 12, 1960 [Feb. 12, 1959], No. 5064/60. Class 36. A device for spacing overhead conductors and supporting them from a cable comprises members, at least two of which are pivotally interconnected, constructed so that when the free ends of two of them are brought together one or more conductors will be engaged and positioned by co-operating surfaces disposed on edges of the members, the device being provided with means for supporting it from a cable whether or not the free ends of the members are connected together. In the arrangement of Fig. 5, three members 6, 7 and 8 are interconnected by pivots 16, each member being formed with two arcuate bosses 11a, 11b which are bushed with rubber bushings and co-operate with similar bushed bosses on the other members to locate the cables 4a-4c when the device is in the closed position shown. The free ends 9a and 9b of the side members 6 and 7 are hookshaped and provided with arcuate bosses to fit around the supporting cable 3, the end 9b being bifurcated whilst 9a has a wedge-shaped tongue so that these ends dovetail and lock together. The arcuate length of end 9a is sufficient so that it can be hooked over the messenger and will support the device in its open position. In an alternative embodiment, Fig. 9, the side members 60 and 70 are pivoted at 61 and lock by means of projections 62 and 63 on the free ends to clamp a third member 80 between them. The device is preferably of insulating material such as acrylic resin.
Patent GB-1532555-A (GB)
Title: Turbine wheels
IPC: C04B35/591
Filed: 1976-02-10
Abstract: 1532555 Forming sintered silicon nutride turbine wheels MOTOREN UND TURBINENUNION MUNCHEN GmbH 10 Feb 1976 [11 Feb 1975] 05190/76 Heading C7D [Also in Division F1] Turbine wheels are made by reaction sintering Si powder to form separate Si 3 N 4  rings 1 and turbine blades 6. Hot pressing Si 3 N 4  powder into the rings to form turbine discs 3, the rings being restrained from expanding e.g. in a die, during hot pressing and then sintering the blades 6 on to the rings 3. Si powder may be placed between the ring and blades to aid the sintering.
Patent GB-229862-A (GB)
Title: Improvements relating to burglar alarms
IPC: G08B13/22
Filed: 1924-02-29
Abstract: 229,862. Carpenter, G. B. Feb. 29, 1924. Burglar and like alarms. - Stretched wires forming part of a closed burglar alarm circuit are supported separately across a window aperture solely by frictional engagement due to the stretched condition. Each end of each wire a is attached to a metal block c provided with a hole f. Metal blocks d are fixed to the window frame and have pins e depending therefrom. These pins e pass into the holes f in the blocks c and are meld against the sides of the holes by the stretched condition of the wires a. The blocks c have terminal screws b for attachment of the wi:'e.s a and the fixed blocks d have terminal screws g for attachment of the circuit leads h. To adapt both blocks for use either with a vertical window or with a horizontal window such as a skylight, tapped holes i are provided on two faces at right angles of the blocks c for the terminal screws b ; and the blocks d have tapped holes k for insertion of the pins e, and tapped holes for the terminal screws g on two faces at right angles. Also the hole in each block d for insertion of the wood screw b, by which it is fixed to the window frame, is countersunk at both ends, so that the screw may be inserted from either side of the block.
Patent GB-374012-A (GB)
Title: Improvements in and relating to electric power converting apparatus
IPC: H02M7/51
Filed: 1931-02-24
Abstract: 374,012. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A. ; 1, Washington Avenue, Schenectady, New York, U.S.A.) Feb. 24, 1931, No. 5800. Convention date, Feb. 24, 1930. [Class 38 (ii).] In a polyphase inverter system, the D.C. terminals are bridged by a plurality of paths each including a pair of grid-controlled discharge devices 28, 29 ; 30, 31 ; 32, 33 and an inductive winding 34, 35, 36, the A.C. connections 27 being made to points intermediate the ends of inductive windings. The latter are arranged on a common core and are stated to cause satisfactory commutation of current in the valves thus rendering commutating capacities unnecessary. Condensers 40 may be connected across the A.C. terminals for neutralizing the effect of the magnetizing current in the inductive windings. Grid control potentials are derived through a transformer 38 from bus-bars 39 normally connected to the A.C. terminals but capable of being connected temporarily to a separate source of A.C. for starting. Means may also be provided whereby in the event of a decrease in voltage at the A.C. terminals, operation of the system is suspended. Such means comprises a condenser adapted to be charged from the D.C. terminals through auxiliary valves and discharged through the valves 29, 31, 33 to interrupt their operation. The discharge circuits include grid-controlled valves, the grid circuits of which are subjected to opposed biasing potentials derived through rectifiers from alternating current sources one of which may be the main A.C. terminals of the system. Thus in the event of a decrease in voltage at those terminals, the grid potentials are so modified as to render the valves operative to complete the discharge circuits of the condenser and to render the main valves 29, 31, 33 inoperative. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a similar protective arrangement applied to a single phase inverter system of the type employing commutating capacities. This subject-matter does not appear in the Specification as accepted.
Patent GB-1281451-A (GB)
Title: Improvements in or relating to machine tool slide-ways
Inventor: LEE ERNEST LOVE
IPC: B23Q1/62
Filed: 1970-03-23
Abstract: 1281451 Slideway assemblies; jigs E L LEE 19 April 1971 [23 March 1970 28 Jan 1971 24 Feb 1971] 13902/70 3373/71 and 5312/71 Headings B3B and B3C A machine tool slideway assembly in which spaced bearings receive a slidable shaft and an intermediate bearing is provided between the spaced bearings, is constructed so that the intermediate bearing is movable normal to the axis of the shaft for reducing play or "chatter" in the assembly. As shown, a machine tool bed 1 supports an intermediate plate 2 and work-table 3. The bed mounts a shaft 4 along which plate 2 is slidable through PTFE-lined bushes 6. Between the latter is a yoke member 12 with shaft-engaging bushes 12A. The member 12 is movable normal to the shaft 4 by operation of a screw device 10, 11A, 11B secured to plate 2, whereby play between the shaft and bearings can be taken up. At the other edge of the bed, the latter provides a trackway rod 7 on which a concave-periphery roller 9 runs. The work-table 3 is mounted upon the plate 2 by a slideway assembly comprising a shaft 15 supported by plate 2, spaced bearing bushes 16 on the work-table 3, and an intermediate bearing constituted by a yoke member 21 with bearing bushes 21A. Yoke member 21 is movable generally normal to the axis of shaft 15 by operation of a bell-crank lever mechanism 22, 23, whereby play between the shaft 15 and bearings can be taken up. At the other edge of worktable 3 the latter has a pair of rollers 19A, 19B which run in a trackway provided on the plate 2. Roller 19B is mounted for rotation about an axis which is slightly eccentric relative to that of roller 19A. An adjusting mechanism 20A, 20C is provided to adjust the position of axis of roller 19B whereby roller 19A runs on the trackway floor 17 while roller 19B runs on trackway ceiling 17A. For drilling of a pattern of holes a stylus 29 cooperates with a template (not shown) which is securable to a plate 28 movable on the bed 1 and lockable in position thereon. Different forms of stylus are described (Figs. 5-7, not shown). Lubrication of shafts 4, 15 is maintained by providing means, such as felt pads, on the respective yoke members 12, 21.
Patent GB-1429103-A (GB)
Title: Glass to metal hermetic s'als
IPC: C03C27/04
Filed: 1974-02-05
Abstract: 1429103 Glass to metal seals BENDIX CORP 5 Feb 1974 [5 Feb 1973] 05318/74 Heading C1M In the bonding of glass to a metal article, such as a glass header joined to a housing for electrically conductive components, the metal containing a major portion of either titanium or niobium, boron oxide in solution is deposited on the metal article, dried and heated in an inert atmosphere to above the melting point of boron oxide to form a film in the metal; the glass and boron coated surface brought together and heated in an inert atmosphere to a temperature to render the glass flowable and then cooled to form a hermetic seal between the metal article and the glass. The boron oxide may be dissolved in water or a lower aliphatic alcohol, preferably a 20% by weight boron oxide in methanol. Heating is first to 550-650 C and then to 900- 1000 C. and argon is preferred but nitrogen or helium may be used. The metal given in an example is titanium with, by weight, 6% aluminium and 4% vanadium. The contacts through the glass header are molybdenum.
Patent GB-1032191-A (GB)
Title: Improvements in and relating to thyristor circuits
Inventor: KOPPELMANN FLORIS
IPC: H02P25/26
Filed: 1963-02-11
Abstract: 1,032,191. Semi-conductor switching circuits. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb.11, 1963, No. 5490/63. Heading H3T. [Also in Division H2] A circuit for switching off a semi-conductor thyristor comprises a quenching capacitor and means for charging the capacitor in dependence upon the current through the thyristor when the latter is conducting and for discharging the capacitor in opposition to the current flow through the thyristor to terminate the current flow. With reference to Fig. 1 a semi-conductor thyristor 9 is arranged to short-circuit resistors 3, 4 of a rotor resistance of a motor when thyristor 9 is rendered conducting by pulses from 11. During the period when thyristor 9 is conducting quenching capacitor 14 charges over the circuit including inductive reactance 10 connected as an auto-transformer in series with the parallel R.C. circuit 13 and with the diode 15, the peak voltage attained by the capacitor 14 being determined by reactance 10 and the current flow through thyristor 9. When a second thyristor 12 in series with capacitor 14 is fired the quenching capacitor 14 is discharged through it to the thyristor 9 in the opposite direction to the current flow in the latter to quench it. The thyristor 12 is quenched thereafter by the oscillatory return flow of current. In a second embodiment, Fig. 2 (not shown), the circuit is used to short-circuit the load resistance in the stator circuit of a motor in order to control the speed of rotation of the latter.
Patent GB-290387-A (GB)
Title: Improvements in or relating to horns for wireless loud speakers and the like
IPC: G10K11/02
Filed: 1927-02-28
Abstract: 290,387. Stanley, A. Feb. 28, 1927. Sound magnifying and directing appliances. - A horn, for loud-speakers, gramophones, and like instruments, of the kind comprising an outer flared shell and an inner bodv forming an annular sound passage, has the inner body substantially pear-shaped and so disposed that the sound passage gradually increases in cross-sectional area. As shown in Fig. 2, the pear-shaped body B is secured by bridge pieces a within a bulbous flared shell C and extends nearly to the mouth of the flare. In a modification, Fig. 3, the mouth end of the body B is pointed.
Patent GB-1010518-A (GB)
Title: Variable width slit operating mechanism
IPC: G01J3/04
Filed: 1964-02-10
Abstract: 1, 010, 518. Variable slit diaphragms. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANISATION. Feb. 10, 1964, No. 5526/64. Heading G2J. Two slits in a spectrometer comprise fixed slit jaws 15,16 and movable jaws 17, 18, both sets of jaws being in the same plane the movable jaws being mounted on a rectangular frame 19, 20, 21, 22, 29 in which the struts 21, 22 and 29 are resiliently flexible and 22 and 29 are secured at their mid points in pillars 27, 28 of the base plate 11. A roller 41 is mounted on the arm 39 of the ring 38 which, when rotated moves the roller along the cam surface 34 of the arm 30. Movement of the arm 30 is transmitted by the link 35 into lateral movement of the struts 21, 22, 29 which effectively alters their length thereby causing movement of the slit jaws 17,18 to change the slit widths in unison.
Patent GB-216569-A (GB)
Title: Improvements in and relating to baking ovens
IPC: A21B1/00
Filed: 1923-02-26
Abstract: 216,569. Greenwood, R., and Carr & Co., Ltd. Feb. 26, 1923. Bakers' ovens.-An air-heating furnace is connected to a. baker's oven in such manner that a constant circulation of hot air is maintained between the furnace and the oven, whilst the products of combustion can be utilized at will for heating the oven externally or internally. Air-heating furnaces.-The furnace consists of a rectangular combustion chamber 7 fired by downwardly directed gas burners 26, and arranged beneath an air-heating chamber 6 having horizontal and vertical baffles 5, which cause the air to follow a tortuous path. At the four sides of the combustion chamber are return fires 14 for the exhaust air from the oven. The air from the chamber 6 is drawn through the pipe 9 by a fan 10, and is supplied through the flue 11 to the interior of a vertical oven 1 of the kind described in Specification 185,460, having inlet and exhaust conduits 2, 3, the latter of which lead back to the air-heating chamber 6 through the flues 12, 14. The products of combustion from the chamber 7 are passed through a flue 16 to a jacket flue 17 around the oven, and dampered connections 19, 22 are provided by which a regulable portion of combustion products and air can be mixed with air and combustion products respectively. Combustion products may also be passed direct from the chamber 7 to the chamber 6. Expansion of the conduits 2, 3 is allowed for by sliding joint with the sockets 25.
Patent GB-159195-A (GB)
Title: Improvements in electrically heated muffle furnaces
IPC: H05B7/22
Filed: 1921-02-18
Abstract: 159,195. Akt.-Ges. Brown, Boveri, et Cie. Feb. 18, 1920, [Convention date]. Electrode and resistance furnaces.-A muffle a is situated within a chamber in which arcs are formed between electrodes e and a molten resistance material d. This material may be a substanqe non-conductive when cold. a metal such as iron, or an alloy; if the metal is heated to boiling point an uniform temperature can be obtained. One or more muffles a may be arranged in a single heating-chamber; they may be horizontal or inclined, and fixed or removable. Electrode holders slide on uprights c also supporting the furnace. Various numbers of electrodes may be provided, and may be fed with direct or single or polyphase alternating current. The furnace may be used for burning, melting, hardening, and annealing.
Patent GB-491081-A (GB)
Title: Improvements in curtain suspension hooks separate or combined with curtain runners or gliders
IPC: A47H13/16
Filed: 1937-02-25
Abstract: 491,081. Suspending curtains. FRENCH & SONS, Ltd., T., and FRENCH, G. F. Feb. 25, 1937, Nos. 5614 and 21763. [Class 52 (v)] A curtain suspension hook comprises two parallel members b each of which can be passed through one of a pair of adjacent hooktubes in a row of side by side tubes on a curtain heading tape, the elasticity of members b holding the hook firmly into engagement with the tubes. The loop end of the hook may be bent round to grip the front wall of the hook-tube. The hook may be formed with outwardly curved parts d which will grip a portion of the curtain above the heading tape and hold it erect. The hook may be combined with a sheet metal curtain rail glider or runner. The sides a of the hook may be spaced apart as shown in Fig. 11, so that the hook grips the outer sides rather than the inner of an adjacent pair of hook-tubes. Specification 491,080 is referred to.
Patent GB-574664-A (GB)
Title: Improvements in or relating to centrifugal moulding machines for the production of pipes, masts and the like
IPC: B28B1/34
Filed: 1943-11-03
Abstract: 574,664. Centrifugal moulding- machines for making pipes, masts, &c. STUSSI, J., and INTERNATIONALE SIEGWARTBALKENGES. Nov. 3, 1943, No. 5682/44. Divided out of 560,138. [Class 87 (ii)] The distributer 27 is mounted on a solid plunger 49 which is rotatably and slidably mounted in a cylinder 48 connected to a hydraulic pump 41 through a three-way cock 47. When the cock is in the middle position, the plunger is held in the raised position. The pump is fed from a container 43 connected to a container 44 having a float 45 connected to a pointer 46 which indicates the vertical position of the distributer 27.
Patent GB-532379-A (GB)
Title: Improvement relating to reed organs
IPC: G10B1/08
Filed: 1939-02-21
Abstract: 532,379. Reed and pipe organs. SCIORTINO, P. Feb. 21, 1939, No. 5753. [Class 88 (ii)] In reed organs an inverted conical or hopperlike air-receiving chamber 3 is arranged directly under the keyboard and in pipe organs the chamber is arranged directly under the pipes; an electrically-driven fan 7, enclosed in a casing 6 below the air-receiving chamber, supplies air to the chamber either directly or through a bellows-like wind chest or reservoir. The casing has air inlets 9. An opening 13 accommodates the player's feet. The chamber 3 is provided with air vents (not shown) fitted with spring-pressed closure devices.
Patent GB-234450-A (GB)
Title: Improvements in or relating to hand presses
IPC: B28B3/02
Filed: 1925-03-03
Abstract: 234,450. Tetetleni, A. May 23, 1924, [Convention date]. Stationary-mould machines.-A hand press for building-blocks &c. is furnished with a cover, disposed opposite to the pressing-plunger, adapted to exert a preliminary compression upon the material. As shown, standards 1 support an interchangeable mould 2 fitted with a pressing and ejecting plunger 3. The cover 4 is carried by levers 7 having extensions 8 connected by an operating-handle 9, the levers being pivoted to a shaft 5 carried by a yoke 10 connected to a transverse support 12 and also pivotally connected at 6 to a yoke 11 adapted to engage the support 12 to secure the cover in closed position. The plunger 3 is operated for the pressure stroke by a cam 16 coupled to an operating-lever 17 ; and for the ejecting movement by a pedal 20 and yoke 18 connected to plunger and bridging the cam shaft 15. In operation, the yoke 11 is disconnected and turned, back with the cover, into the dotted line position; the mould is then charged with material and the cover lowered to apply a preliminary compression and locked by moving the yoke 11 to engage the support 12, after which pressure is applied by the cam 16; and finally, the cover is again released and the pedal 20 depressed to eject the block.
Patent GB-905706-A (GB)
Title: Improvements in containers
Inventor: SCHOFIELD PHILIP JOHN
IPC: B65D8/14
Filed: 1960-02-18
Abstract: 905,706. Portable containers. MARSTON EXCELSIOR Ltd. Feb. 15, 1961 [Feb. 18, 1960], No. 5828/60. Class 66. A container comprises a rigid bin 1 which may be of polythene, to which is secured a flexible portion 14 having an air bag 9 which may be inflated, after the container is filled, in order to make the portion 14 rigid. The two main parts of the container are secured as shown in Fig. 2, the rim of the bin 1 having a groove for an 0-ring 4 which presses the wall of the portion 14 into a groove formed in a polythene moulding 6. Steel tapes 8 overlie fabric hoops 7 to clamp the member 6 in postion. The portion 14 may be of plastics material or rubber reinforced with fabric. The air bag 9 and portion 14 have registering apertures in which a valve housing is secured, Fig. 3 (not shown). The portion 14 may be retracted within the bin 1 when the container is empty and the container nested with others in that condition, Fig. 4 (not shown). A detachable cover 2 is fitted in the container base.
Patent GB-905188-A (GB)
Title: Mains-fed circuit arrangement including a half-wave semi-conductor rectifier device
IPC: H02H9/06
Filed: 1961-02-16
Abstract: 905,188. Rectifying. SIEMENS - SCHUCKERTWERKE A.G. Feb. 16, 1961 [Feb. 16, 1960], No. 5845/61. Class 38 (2). An electric circuit connected to an A.C. source 2 comprises a resistive load 3 shunted by a capacitor 4 and fed through a half-wave semi-conductor rectifier element 1 which is shunted by a spark gap 5. On excessive voltage during the blocking halfcycle the spark gap breaks down and the capacitor discharges through it. The aftercurrent flowing through the spark gap after the discharge of the capacitor is limited by the load resistance, and the spark gap is so dimensioned that it is extinguished the first time this after current passes through zero. If a protective resistor is connected in series with the element 1 the spark gap shunts them both.
Patent GB-557083-A (GB)
Title: Improvements in and relating to means for reducing noise in radio receivers
IPC: H04B1/12
Filed: 1942-05-01
Abstract: 557,083. Wireless receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 1, 1942, No. 5870. Convention date, March 25, 1941. [Class 40 (v)] A receiver has a loop antenna 1 connected at one end to the input grid of the first amplifier 15 and at the other end to the chassis 11. One or more outside turns 3 connected to the loop 1 at the point connected to the chassis, are coupled through a trimmer condenser 5 to a plate 7 having considerable capacity to ground. By this means, the noise voltage induced in loop 1 due to the capacity between the loop and ground can be exactly neutralized by the noise voltage induced in the outside turns 3 due to the capacity between the plate 7 and ground. A switch 9 for short-circuiting the condenser 5 enables the disectivity of the loop to be reduced in locations where the noise is not troublesome.
Patent GB-1500365-A (GB)
Title: Plastics bags or sheets
IPC: B65B61/02
Filed: 1975-02-12
Abstract: 1500365 Perforating plastics sheet UNION CARBIDE CORP 12 Feb 1975 [26 Feb 1974] 5873/75 Heading B5A A plastics sheet 11 has a hole 39 formed therein, the perimeter of which is formed by a continuous bead 43 of melted and rehardened plastics, the thickness of which is diminished at one point 43a to facilitate tearing i.e. the sheet from a wicket-held stack. The sheet is clamped between templates 13, 15 having apertures 17, 21 corresponding to the shape of the desired hole and subjected to a stream of hot gas from means 25, the stream axis being offset from the axis of the apertures. A plate 41 redirects the gas stream, which is heated by an electric element 27 in a tubular housing 25, upwardly. The perforated sheet may provide a wall of a packaging bag.
Patent GB-878207-A (GB)
Title: Improvements in x-ray tubes
IPC: H01J35/06
Filed: 1960-02-19
Abstract: 878,207. X-ray tubes. PAROSELLI, L. Feb. 19, 1960, No. 5903/60. Class 39(1). An X-ray tube is provided with two anodes 28, 29 each with a co-operating cathode 17, each of the anodes being pivoted at 27 to a fixed supporting rod 22 and being attached by links 34, 35 to a sliding shaft 32 which may be moved longitudinally via gearing 40, 41, 43, 45 by a sealed motor unit 37 mounted on one side of the tube envelope, so as to vary the angle of inclination of the anodes 28, 29 with respect to the axis of the incident beams. The tube 12 is housed in a lead lined aluminium casing 3, the space between the tube and the casing being oil-filled, and cooling fins 25 are provided. The anode may be used separately to take stereoscopically paired pictures.